roi-theme/wp-content/plugins/PDFEmbedder-premium-secure/assets/js/viewer/app_options.js

/* Copyright 2018 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

const compatibilityParams = Object.create(null);
if (typeof PDFJSDev === 'undefined' || PDFJSDev.test('GENERIC')) {
	if (
		typeof PDFJSDev !== 'undefined' &&
		PDFJSDev.test('LIB') &&
		typeof navigator === 'undefined'
	) {
		globalThis.navigator = Object.create(null);
	}
	const userAgent = navigator.userAgent || '';
	const platform = navigator.platform || '';
	const maxTouchPoints = navigator.maxTouchPoints || 1;

	const isAndroid = /Android/.test(userAgent);
	const isIOS =
		/\b(iPad|iPhone|iPod)(?=;)/.test(userAgent) ||
		(platform === 'MacIntel' && maxTouchPoints > 1);

	// Limit canvas size to 5 mega-pixels on mobile.
	// Support: Android, iOS
	(function checkCanvasSizeLimitation() {
		if (isIOS || isAndroid) {
			compatibilityParams.maxCanvasPixels = 5242880;
		}
	})();
}

const OptionKind = {
	VIEWER: 0x02,
	API: 0x04,
	WORKER: 0x08,
	PREFERENCE: 0x80,
};

/**
 * NOTE: These options are used to generate the `default_preferences.json` file,
 *       see `OptionKind.PREFERENCE`, hence the values below must use only
 *       primitive types and cannot rely on any imported types.
 */
const defaultOptions = {
	annotationEditorMode: {
		/** @type {boolean} */
		value:
			typeof PDFJSDev === 'undefined' ||
			PDFJSDev.test('!PRODUCTION || TESTING')
				? 0
				: -1,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	annotationMode: {
		/** @type {number} */
		value: 2,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	cursorToolOnLoad: {
		/** @type {number} */
		value: 1,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	defaultZoomValue: {
		/** @type {string} */
		value: '',
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	disableHistory: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.VIEWER,
	},
	disablePageLabels: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	enablePermissions: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	enablePrintAutoRotate: {
		/** @type {boolean} */
		value: true,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	enableScripting: {
		/** @type {boolean} */
		value: typeof PDFJSDev === 'undefined' || !PDFJSDev.test('CHROME'),
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	externalLinkRel: {
		/** @type {string} */
		value: 'noopener noreferrer nofollow',
		kind: OptionKind.VIEWER,
	},
	externalLinkTarget: {
		/** @type {number} */
		value: 2,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	historyUpdateUrl: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	ignoreDestinationZoom: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	imageResourcesPath: {
		/** @type {string} */
		value: './images/',
		kind: OptionKind.VIEWER,
	},
	maxCanvasPixels: {
		/** @type {number} */
		value: 16777216,
		kind: OptionKind.VIEWER,
	},
	forcePageColors: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	pageColorsBackground: {
		/** @type {string} */
		value: 'Canvas',
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	pageColorsForeground: {
		/** @type {string} */
		value: 'CanvasText',
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	pdfBugEnabled: {
		/** @type {boolean} */
		value: typeof PDFJSDev === 'undefined' || !PDFJSDev.test('PRODUCTION'),
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	printResolution: {
		/** @type {number} */
		value: 150,
		kind: OptionKind.VIEWER,
	},
	sidebarViewOnLoad: {
		/** @type {number} */
		value: -1,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	scrollModeOnLoad: {
		/** @type {number} */
		value: -1,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	spreadModeOnLoad: {
		/** @type {number} */
		value: -1,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	textLayerMode: {
		/** @type {number} */
		value: 1,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	useOnlyCssZoom: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	viewerCssTheme: {
		/** @type {number} */
		value:
			typeof PDFJSDev !== 'undefined' && PDFJSDev.test('CHROME') ? 2 : 0,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},
	viewOnLoad: {
		/** @type {boolean} */
		value: 0,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	},

	cMapPacked: {
		/** @type {boolean} */
		value: true,
		kind: OptionKind.API,
	},
	cMapUrl: {
		/** @type {string} */
		value:
			typeof PDFJSDev === 'undefined' || !PDFJSDev.test('PRODUCTION')
				? '../external/bcmaps/'
				: '../web/cmaps/',
		kind: OptionKind.API,
	},
	disableAutoFetch: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.API + OptionKind.PREFERENCE,
	},
	disableFontFace: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.API + OptionKind.PREFERENCE,
	},
	disableRange: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.API + OptionKind.PREFERENCE,
	},
	disableStream: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.API + OptionKind.PREFERENCE,
	},
	docBaseUrl: {
		/** @type {string} */
		value: '',
		kind: OptionKind.API,
	},
	enableXfa: {
		/** @type {boolean} */
		value: true,
		kind: OptionKind.API + OptionKind.PREFERENCE,
	},
	fontExtraProperties: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.API,
	},
	isEvalSupported: {
		/** @type {boolean} */
		value: true,
		kind: OptionKind.API,
	},
	maxImageSize: {
		/** @type {number} */
		value: -1,
		kind: OptionKind.API,
	},
	pdfBug: {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.API,
	},
	standardFontDataUrl: {
		/** @type {string} */
		value:
			typeof PDFJSDev === 'undefined' || !PDFJSDev.test('PRODUCTION')
				? '../external/standard_fonts/'
				: '../web/standard_fonts/',
		kind: OptionKind.API,
	},
	verbosity: {
		/** @type {number} */
		value: 1,
		kind: OptionKind.API,
	},

	workerPort: {
		/** @type {Object} */
		value: null,
		kind: OptionKind.WORKER,
	},
	workerSrc: {
		/** @type {string} */
		value:
			typeof PDFJSDev === 'undefined' || !PDFJSDev.test('PRODUCTION')
				? '../src/worker_loader.js'
				: '../build/pdf.worker.js',
		kind: OptionKind.WORKER,
	},
};
if (
	typeof PDFJSDev === 'undefined' ||
	PDFJSDev.test('!PRODUCTION || GENERIC')
) {
	defaultOptions.defaultUrl = {
		/** @type {string} */
		value: 'compressed.tracemonkey-pldi-09.pdf',
		kind: OptionKind.VIEWER,
	};
	defaultOptions.disablePreferences = {
		/** @type {boolean} */
		value: typeof PDFJSDev !== 'undefined' && PDFJSDev.test('TESTING'),
		kind: OptionKind.VIEWER,
	};
	defaultOptions.locale = {
		/** @type {string} */
		value: navigator.language || 'en-US',
		kind: OptionKind.VIEWER,
	};
	defaultOptions.renderer = {
		/** @type {string} */
		value: 'canvas',
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	};
	defaultOptions.sandboxBundleSrc = {
		/** @type {string} */
		value:
			typeof PDFJSDev === 'undefined' || !PDFJSDev.test('PRODUCTION')
				? '../build/dev-sandbox/pdf.sandbox.js'
				: '../build/pdf.sandbox.js',
		kind: OptionKind.VIEWER,
	};
} else if (PDFJSDev.test('CHROME')) {
	defaultOptions.defaultUrl = {
		/** @type {string} */
		value: '',
		kind: OptionKind.VIEWER,
	};
	defaultOptions.disableTelemetry = {
		/** @type {boolean} */
		value: false,
		kind: OptionKind.VIEWER + OptionKind.PREFERENCE,
	};
	defaultOptions.sandboxBundleSrc = {
		/** @type {string} */
		value: '../build/pdf.sandbox.js',
		kind: OptionKind.VIEWER,
	};
}

const userOptions = Object.create(null);

class AppOptions {
	constructor() {
		throw new Error('Cannot initialize AppOptions.');
	}

	static get(name) {
		const userOption = userOptions[name];
		if (userOption !== undefined) {
			return userOption;
		}
		const defaultOption = defaultOptions[name];
		if (defaultOption !== undefined) {
			return compatibilityParams[name] ?? defaultOption.value;
		}
		return undefined;
	}

	static getAll(kind = null) {
		const options = Object.create(null);
		for (const name in defaultOptions) {
			const defaultOption = defaultOptions[name];
			if (kind) {
				if ((kind & defaultOption.kind) === 0) {
					continue;
				}
				if (kind === OptionKind.PREFERENCE) {
					const value = defaultOption.value,
						valueType = typeof value;

					if (
						valueType === 'boolean' ||
						valueType === 'string' ||
						(valueType === 'number' && Number.isInteger(value))
					) {
						options[name] = value;
						continue;
					}
					throw new Error(`Invalid type for preference: ${name}`);
				}
			}
			const userOption = userOptions[name];
			options[name] =
				userOption !== undefined
					? userOption
					: compatibilityParams[name] ?? defaultOption.value;
		}
		return options;
	}

	static set(name, value) {
		userOptions[name] = value;
	}

	static setAll(options) {
		for (const name in options) {
			userOptions[name] = options[name];
		}
	}

	static remove(name) {
		delete userOptions[name];
	}

	/**
	 * @ignore
	 */
	static _hasUserOptions() {
		return Object.keys(userOptions).length > 0;
	}
}

export { AppOptions, compatibilityParams, OptionKind };